文昌魚目 的英文怎麼說
中文拼音 [wénchāngyúmù]
文昌魚目
英文
amphioxiformes-
However, only three species of the cephalochordate including b. lanceolatum, b. floridae, and b. belcheri, have so far been studied for their chromosome numbers, and the karyotypic analysis and banding study of amphioxus chromosomes remains largely untouched
Floridae 、 b belcheri三種文昌魚染色體數目。有關文昌魚染色體核型和帶型的研究尚未見任何報道，文昌魚染色體核型和帶型的研究將為比較基因組學和細胞遺傳學研究提供珍貴的背景資料。As the number of r - bands is associated with that of genes, and most genes that have been mapped to mammalian chromosomes with sufficient precision are usually distributed in r - bands rather than in g - bands. this is apparently in agreement with the hypothesis of two rounds of extensive gene duplication leading to the origin of the vertebrates
R帶的數目與基因的多少相關，許多哺乳動物的基因已精確地進行了染色體定位，大量報道證明它們一般分佈在r帶上，而不是g帶上，文昌魚r帶的數目恰恰與脊椎動物起源時發生了兩次基因倍增的假設相吻合。The counting of 150 well - spread samples revealed that the number of the chromosomes ranged from 18 to 38, but the modal number of the chromosome was 36, which was in proportion to 66 %
計數150個染色體分散好的中期相，發現染色體數目的變化范圍是18至38條，長度為1 . 4至3 . 7 m ，染色體的眾數是36 ，佔150個中期相的66 ，說明青島文昌魚染色體的數目是36 。1. chromosome number ( 2n ) and fundamental number ( fn ) the chromosome number and karyotype of amphioxus branchiostoma belcheri tsingtauense were studied using embryonic cells of the animal
染色體數目（ 2n ）和臂數（ fn ）用青島文昌魚的胚胎細胞作材料，對其染色體數目和核型進行研究。分享友人